Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Hyung Ham Kim"'
Publikováno v:
iScience, Vol 27, Iss 12, Pp 111324- (2024)
Externí odkaz:
https://doaj.org/article/721916696ce44e818c7f94f2ad56a6d1
Autor:
Seonghee Cho, Minsu Kim, Joongho Ahn, Yeonggeun Kim, Junha Lim, Jeongwoo Park, Hyung Ham Kim, Won Jong Kim, Chulhong Kim
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-15 (2024)
Abstract Transparent ultrasound transducers (TUTs) can seamlessly integrate optical and ultrasound components, but acoustic impedance mismatch prohibits existing TUTs from being practical substitutes for conventional opaque ultrasound transducers. He
Externí odkaz:
https://doaj.org/article/7af8be23c6434c9eade36a951ea6f564
Publikováno v:
iScience, Vol 26, Iss 11, Pp 108178- (2023)
Summary: Acoustic tweezers (ATs) are a promising technology that can trap and manipulate microparticles or cells with the focused ultrasound beam without physical contact. Unlike optical tweezers, ATs may be used for in vivo studies because they can
Externí odkaz:
https://doaj.org/article/f8c68922fcf549729d600907209a0648
Autor:
Jongbeom Kim, Dongyoon Lee, Hyokyung Lim, Hyekyeong Yang, Jaewoo Kim, Jeesu Kim, Yeonggeun Kim, Hyung Ham Kim, Chulhong Kim
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Simultaneous point-by-point raster scanning of optical and acoustic beams has been widely adapted to high-speed photoacoustic microscopy (PAM) using a water-immersible microelectromechanical system or galvanometer scanner. However, when usin
Externí odkaz:
https://doaj.org/article/e4da6ad1bb24438a99765fbaf0db258e
Autor:
Jongbeom Kim, Gyuwon Kim, Lei Li, Pengfei Zhang, Jin Young Kim, Yeonggeun Kim, Hyung Ham Kim, Lihong V. Wang, Seungchul Lee, Chulhong Kim
Publikováno v:
Light: Science & Applications, Vol 11, Iss 1, Pp 1-12 (2022)
Computational strategy based on deep neural networks enables to reconstruct high-density superresolution localization photoacoustic images from far fewer raw image frames.
Externí odkaz:
https://doaj.org/article/92c278f7f42d4544b06097a3702e4d7c
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-20 (2022)
Abstract Cell deformability is a useful feature for diagnosing various diseases (e.g., the invasiveness of cancer cells). Existing methods commonly inflict pressure on cells and observe changes in cell areas, diameters, or thickness according to the
Externí odkaz:
https://doaj.org/article/905de1609bfc48879eec28b365b70b59
Autor:
Yeonggeun Kim, Jongbeom Kim, Joongho Ahn, Moongyu Han, Hae Gyun Lim, Ki Jong Lee, Juseung Lee, Chulhong Kim, Hyung Ham Kim
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract With the increasing need for steel sheet quality assurance, the detection of micro-scaled inclusions in steel sheets has become critical. Many techniques have been explored to detect inclusions, e.g., visual inspection, radiography, magnetic
Externí odkaz:
https://doaj.org/article/423ef17087644824a8ce19ba8a780a92
Autor:
Joongho Ahn, Jin Woo Baik, Yeonggeon Kim, Karam Choi, Jeongwoo Park, Hyojin Kim, Jin Young Kim, Hyung Ham Kim, Sung Hyun Nam, Chulhong Kim
Publikováno v:
Photoacoustics, Vol 27, Iss , Pp 100374- (2022)
Photoacoustic microscopy (PAM) is used to visualize blood vessels and to monitor their time-dependent changes. Photoplethysmography (PPG) measures hemodynamic time-series changes such as heart rate. However, PPG’s limited visual access to the dynam
Externí odkaz:
https://doaj.org/article/6d4232b0e3584f84b8669d9119b6803b
Publikováno v:
IEEE Access, Vol 9, Pp 85894-85902 (2021)
Since 2003, when the European Union (E.U.) announced the restriction of hazardous substances (RoHS), multiple efforts have been made to replace lead zirconate titanate (PZT) based piezoelectric materials. However, despite these efforts, very few PZT
Externí odkaz:
https://doaj.org/article/9cb5530d539d464591f67eca1af2e7b6
Acoustic Power Transfer Using Self-Focused Transducers for Miniaturized Implantable Neurostimulators
Publikováno v:
IEEE Access, Vol 9, Pp 153850-153862 (2021)
An emerging neurostimulation therapy utilizes electroceuticals to treat numerous neurological disorders. With the aim to discover novel clinical applications of neural stimulation, device miniaturization has been a key challenge for successful clinic
Externí odkaz:
https://doaj.org/article/0f1034f751b74c0b90a62e28e84e3ba0